Characteristics of p-Hydroxybenzoic Acid Oxidation using Fenton's Reagent

• Type: Article in International Scientific Journal
• Date: 2004

Authors

J. A. S. Peres (Author) Other; L. H. Melo de Carvalho (Author) Other; Rui Boaventura (Author) FEUP; C. A. V. Costa (Author) Other

Journal

Title: Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering

Vol. 39 No. 11-12

Pages: 2897-2913

ISSN: 1093-4529

Publisher: Taylor & Francis

Indexing

ISI Web of Knowledge - 22 Citations

Other information

Authenticus ID: P-00J-N1X

DOI: 10.1081/lesa-200034224

Abstract (EN): The objective of this work was to investigate the oxidation of p-hydroxybenzoic acid by the Fenton's reagent. Batch experiments were carried out to investigate the influence of the most important process variables: hydrogen peroxide and ferrous salt concentrations, pH, and temperature. The optimal results obtained indicate that p-hydroxybenzoic acid can be effectively degraded using Fenton's oxidation within 10-min reaction time by using a molar ratio H2O2: p-hydroxybenzoic acid of 4:1 and H2O2:Fe2+ of 15:1, at 30degreesC and pH=3.0. The behavior of ORP and pH along the reaction time for different values of R (molar ratio H2O2: p-hydroxybenzoic acid) was also discussed. A pseudo-first order model was applied to describe the oxidation kinetics of p-hydroxybenzoic acid by Fenton's reagent.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 17